2 * collectd - src/utils_random.h
3 * Copyright (C) 2013 Florian Forster
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
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10 * Software is furnished to do so, subject to the following conditions:
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24 * Florian Forster <octo at collectd.org>
28 * Returns a random double value in the range [0..1), i.e. excluding 1.
30 * This function is thread- and reentrant-safe.
32 double cdrand_d(void);
35 * cdrand_u returns a random uint32_t value uniformly distributed in the range
38 * This function is thread- and reentrant-safe.
40 uint32_t cdrand_u(void);
43 * Returns a random long between min and max, inclusively.
45 * If min is larger than max, the result may be rounded incorrectly and may be
46 * outside the intended range. This function is thread- and reentrant-safe.
48 long cdrand_range(long min, long max);